Data Centre Design and Construction Guide – Technical Specifications

Tier Classifications

Tier Level	Uptime (%)	Redundancy	Power Density (kW/rack)
Tier I	99.671	N	4-8
Tier II	99.741	N+1	8-12
Tier III	99.982	2N	12-20
Tier IV	99.995	2(N+1)	20+

Power Systems

Power Distribution

Component	Redundancy	Capacity	Monitoring
UPS	2N/2(N+1)	120% design	Real-time
PDU	2N	80% rated	Per rack
Generators	N+1/2N	125% load	Continuous
Switchgear	2N	150% rated	SCADA
Transformers	2N	100% rated	Temperature

Power Requirements

Area	Density (kW/m²)	Redundancy	Backup Time
Server Hall	1.5-3.0	2N	72 hours
Network Room	1.0-1.5	2N	72 hours
Support Areas	0.2-0.4	N+1	24 hours
Offices	0.1-0.2	N	4 hours

Cooling Systems

HVAC Specifications

Parameter	Requirement	Standard	Monitoring
Temperature	18-27°C	ASHRAE TC 9.9	Continuous
Humidity	40-60% RH	ASHRAE TC 9.9	Real-time
Air Flow	Hot/Cold aisle	EN 50600	CFD verified
PUE Target	<1.3	ISO/IEC 30134	Real-time

Cooling Methods

Type	Capacity (kW/rack)	Efficiency (PUE)	Application
CRAH	8-15	1.4-1.6	Traditional
In-Row	15-30	1.2-1.4	High density
Direct Liquid	30-50	1.1-1.3	Ultra high density
Free Cooling	Variable	1.1-1.2	Climate dependent

Physical Infrastructure

Floor Loading

Area	Load (kN/m²)	Point Load (kN)	Safety Factor
Server Floor	12-15	4.5	1.5
Battery Rooms	15-20	6.0	2.0
Equipment Rooms	10-12	3.5	1.5
Loading Areas	20-25	7.0	2.0

Raised Floor Systems

Parameter	Specification	Standard	Testing
Height	600-1200mm	EN 12825	Load tested
Panel Rating	Class 5/6	MOB PF2 PS	Deflection
Pedestal Rating	22kN	CISCA	Stability
Fire Rating	60 minutes	EN 13501	Fire tested

Security Systems

Access Control

Zone	Security Level	Authentication	Monitoring
Perimeter	Level 5	Biometric+Card	24/7 CCTV
Data Hall	Level 4	Biometric	Man-trap
Support Areas	Level 3	Card+PIN	Access logs
Loading Bay	Level 4	Card+CCTV	Supervised

CCTV Coverage

Area	Camera Type	Storage	Analytics
External	PTZ + Fixed	90 days	AI enabled
Internal	360° + Fixed	60 days	Motion detect
Critical Areas	Thermal	90 days	Advanced
Access Points	HD + Analytics	90 days	Facial recognition

Fire Protection

Detection Systems

Type	Coverage	Response Time	Standard
VESDA	All areas	<60 seconds	EN 54-20
Smoke	Double knock	<90 seconds	EN 54-7
Heat	Critical areas	<120 seconds	EN 54-5
Gas	Below floor	<30 seconds	EN 54-20

Suppression

System	Application	Agent	Response
Gas	Server halls	NOVEC 1230	<10 seconds
Pre-action	General areas	Water	Double knock
FM200	Electrical	Gas	<10 seconds
Water Mist	Support areas	High pressure	Zoned

Cost Estimates (USD)

Construction Costs

Component	Per m²	Per MW	Life Cycle
Shell	3,000-4,000	N/A	25 years
MEP	10,000-15,000	8-12M	15 years
Security	500-1,000	N/A	10 years
IT Infrastructure	2,000-3,000	1-2M	5 years

Operating Costs

Item	Per kW/month	Per rack/month	Annual %
Power	150-200	800-1,200	45-55
Cooling	50-75	300-500	25-30
Maintenance	25-40	150-250	10-15
Security	15-25	100-150	5-10